js/xpconnect/tests/unit/test_import.js

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/js/xpconnect/tests/unit/test_import.js	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,91 @@
     1.4 +/* This Source Code Form is subject to the terms of the Mozilla Public
     1.5 + * License, v. 2.0. If a copy of the MPL was not distributed with this
     1.6 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
     1.7 + 
     1.8 +function run_test() {   
     1.9 +  var scope = {};
    1.10 +  Components.utils.import("resource://gre/modules/XPCOMUtils.jsm", scope);
    1.11 +  do_check_eq(typeof(scope.XPCOMUtils), "object");
    1.12 +  do_check_eq(typeof(scope.XPCOMUtils.generateNSGetFactory), "function");
    1.13 +  
    1.14 +  // access module's global object directly without importing any
    1.15 +  // symbols
    1.16 +  var module = Components.utils.import("resource://gre/modules/XPCOMUtils.jsm",
    1.17 +                                       null);
    1.18 +  do_check_eq(typeof(XPCOMUtils), "undefined");
    1.19 +  do_check_eq(typeof(module), "object");
    1.20 +  do_check_eq(typeof(module.XPCOMUtils), "object");
    1.21 +  do_check_eq(typeof(module.XPCOMUtils.generateNSGetFactory), "function");
    1.22 +  do_check_true(scope.XPCOMUtils == module.XPCOMUtils);
    1.23 +
    1.24 +  // import symbols to our global object
    1.25 +  do_check_eq(typeof(Components.utils.import), "function");
    1.26 +  Components.utils.import("resource://gre/modules/XPCOMUtils.jsm");
    1.27 +  do_check_eq(typeof(XPCOMUtils), "object");
    1.28 +  do_check_eq(typeof(XPCOMUtils.generateNSGetFactory), "function");
    1.29 +  
    1.30 +  // try on a new object
    1.31 +  var scope2 = {};
    1.32 +  Components.utils.import("resource://gre/modules/XPCOMUtils.jsm", scope2);
    1.33 +  do_check_eq(typeof(scope2.XPCOMUtils), "object");
    1.34 +  do_check_eq(typeof(scope2.XPCOMUtils.generateNSGetFactory), "function");
    1.35 +  
    1.36 +  do_check_true(scope2.XPCOMUtils == scope.XPCOMUtils);
    1.37 +
    1.38 +  // try on a new object using the resolved URL
    1.39 +  var res = Components.classes["@mozilla.org/network/protocol;1?name=resource"]
    1.40 +                      .getService(Components.interfaces.nsIResProtocolHandler);
    1.41 +  var resURI = res.newURI("resource://gre/modules/XPCOMUtils.jsm", null, null);
    1.42 +  dump("resURI: " + resURI + "\n");
    1.43 +  var filePath = res.resolveURI(resURI);
    1.44 +  var scope3 = {};
    1.45 +  Components.utils.import(filePath, scope3);
    1.46 +  do_check_eq(typeof(scope3.XPCOMUtils), "object");
    1.47 +  do_check_eq(typeof(scope3.XPCOMUtils.generateNSGetFactory), "function");
    1.48 +  
    1.49 +  do_check_true(scope3.XPCOMUtils == scope.XPCOMUtils);
    1.50 +
    1.51 +  // make sure we throw when the second arg is bogus
    1.52 +  var didThrow = false;
    1.53 +  try {
    1.54 +      Components.utils.import("resource://gre/modules/XPCOMUtils.jsm", "wrong");
    1.55 +  } catch (ex) {
    1.56 +      print("exception (expected): " + ex);
    1.57 +      didThrow = true;
    1.58 +  }
    1.59 +  do_check_true(didThrow);
    1.60 + 
    1.61 +  // try to create a component
    1.62 +  do_load_manifest("component_import.manifest");
    1.63 +  const contractID = "@mozilla.org/tests/module-importer;";
    1.64 +  do_check_true((contractID + "1") in Components.classes);
    1.65 +  var foo = Components.classes[contractID + "1"]
    1.66 +                      .createInstance(Components.interfaces.nsIClassInfo);
    1.67 +  do_check_true(Boolean(foo));
    1.68 +  do_check_true(foo.contractID == contractID + "1");
    1.69 +  // XXX the following check succeeds only if the test component wasn't
    1.70 +  //     already registered. Need to figure out a way to force registration
    1.71 +  //     (to manually force it, delete compreg.dat before running the test)
    1.72 +  // do_check_true(foo.wrappedJSObject.postRegisterCalled);
    1.73 +
    1.74 +  // Call getInterfaces to test line numbers in JS components.  But as long as
    1.75 +  // we're doing that, why not test what it returns too?
    1.76 +  // Kind of odd that this is not returning an array containing the
    1.77 +  // number... Or for that matter not returning an array containing an object?
    1.78 +  var interfaces = foo.getInterfaces({});
    1.79 +  do_check_eq(interfaces, Components.interfaces.nsIClassInfo.number);
    1.80 +
    1.81 +  // try to create a component by CID
    1.82 +  const cid = "{6b933fe6-6eba-4622-ac86-e4f654f1b474}";
    1.83 +  do_check_true(cid in Components.classesByID);
    1.84 +  foo = Components.classesByID[cid]
    1.85 +                  .createInstance(Components.interfaces.nsIClassInfo);
    1.86 +  do_check_true(foo.contractID == contractID + "1");
    1.87 +
    1.88 +  // try to create another component which doesn't directly implement QI
    1.89 +  do_check_true((contractID + "2") in Components.classes);
    1.90 +  var bar = Components.classes[contractID + "2"]
    1.91 +                      .createInstance(Components.interfaces.nsIClassInfo);
    1.92 +  do_check_true(Boolean(bar));
    1.93 +  do_check_true(bar.contractID == contractID + "2");
    1.94 +}

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